Human Skull Linked to Yale Secret Society to Be Sold

A human skull that apparently was turned into a ballot box for Yale's mysterious Skull and Bones society is going on the auction block.

Christie's estimates the skull will sell for $10,000 to $20,000 when it is auctioned on Jan. 22. Fittingly, the auction house has agreed to keep the seller's name a secret. On Monday, it described the person only as a European art collector.

The skull is fitted with a hinged flap and is believed to have been used during voting at the famous society's meetings. The auction house said it also may have been displayed at the society's tomblike headquarters on Yale's campus in New Haven, Conn., during the late 1800s.